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From: "Mr. Jaehoon Paul Jeong" <jaehoon.paul@gmail.com>
Date: Mon, 8 Mar 2021 22:33:13 +0900
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To: Erik Kline <ek.ietf@gmail.com>
Cc: Carlos Bernardos <cjbc@it.uc3m.es>, Russ Housley <housley@vigilsec.com>, its@ietf.org, skku-iotlab-members <skku-iotlab-members@googlegroups.com>,  "Mr. Jaehoon Paul Jeong" <jaehoon.paul@gmail.com>
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Subject: Re: [ipwave] Datatracker State Update Notice: <draft-ietf-ipwave-vehicular-networking-19.txt>
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Hi Erik,
I will address your comments this week.

Thanks for your valuable review.

Best Regards,
Paul


On Mon, Mar 8, 2021 at 10:34 AM IETF Secretariat <
ietf-secretariat-reply@ietf.org> wrote:

> IESG state changed:
>
> New State: AD Evaluation::Revised I-D Needed
>
> (The previous state was AD Evaluation)
>
> [ abstract, section 1 ]
>
> * "lists up" -> "enumerates|sets forth|details|...", might be a better
>   word/verb phrase
>
>
> [ section 2 ]
>
> * "table PC"? Perhaps "tablet PC", like in section 6.
>
> [ section 3 ]
>
> * There are two sentences in the final paragraph which both direct the
> reader
>   to section 5 for vehicular IPv6 problem statement and requirements.
>   Probably only one of those sentences is really required.
>
> [ section 3.2 ]
>
> * "can facilitates" -> "can facilitate"
>
> * "can make the battery charging schedule" is technically correct, but the
>   multiple possible interpretations of "make" in this context tripped me up
>   looking for some final (indirect) object or something.
>
>   Suggest something like "can plan the battery charging schedule", perhaps?
>
> * "The existing IPv6 protocol must be augmented ..."
>
>   Should there be some explanation about why this needs to be done at the
> IPv6
>   layer and, more explicitly, why a Layer 2 solution is not an option that
>   can also be considered?  I can understand that L2 options are out of
> scope
>   for the IETF to work on, but are they also out of scope overall?  I could
>   believe that the reason is RFC 4903 -style issues, but I figured I'd ask.
>
> [ section 4.1 ]
>
> * "...vehicles under the coverage of an RSU share a prefix such
>    that mobile nodes share a prefix..."
>
>    Perhaps s/such that/(just as)|(in the same way that)/?
>
> [ section 4.2/5(.0) ]
>
> * The final paragraph of 4.2 hints at this, but I found myself wanting to
> read
>   about the expected "dwell times" for a vehicle connected to an IP-RSU.
>   For how long is a vehicle expected to be connected to any given access
> node?
>   I think the maximum is probably uninteresting (the vehicle could be
> parked,
>   for example), but what is the useful minimum time?
>
>   (I see that section 5.1.2 goes include a helpful timescale reference.)
>
> [ section 5.1.1/5.2 ]
>
> * During handover, can a vehicle be connected to multiple IP-RSUs on the
>   logical interface?  If so, does this mean they need to use RFC 8028
> -style
>   address and next hop selection?
>
> [ section 6 ]
>
> * How can a vehicle authenticate other vehicles (and their ND information)
>   and the RAs coming from IP-RSUs?
>
>   Ah, I guess this is what the final two paragraphs are saying, actually,
> that
>   there needs to be such a mechanism.
>
> Datatracker URL:
> https://datatracker.ietf.org/doc/draft-ietf-ipwave-vehicular-networking/
>
>
>
>
>
>

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<div dir=3D"ltr"><div dir=3D"ltr">Hi Erik,<div>I will address your comments=
 this week.</div><div><br></div><div>Thanks for your valuable review.</div>=
</div><div><br></div><div>Best Regards,</div><div>Paul</div><div><br></div>=
<br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon=
, Mar 8, 2021 at 10:34 AM IETF Secretariat &lt;<a href=3D"mailto:ietf-secre=
tariat-reply@ietf.org">ietf-secretariat-reply@ietf.org</a>&gt; wrote:<br></=
div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;bor=
der-left:1px solid rgb(204,204,204);padding-left:1ex">IESG state changed:<b=
r>
<br>
New State: AD Evaluation::Revised I-D Needed<br>
<br>
(The previous state was AD Evaluation)<br>
<br>
[ abstract, section 1 ]<br>
<br>
* &quot;lists up&quot; -&gt; &quot;enumerates|sets forth|details|...&quot;,=
 might be a better<br>
=C2=A0 word/verb phrase<br>
<br>
<br>
[ section 2 ]<br>
<br>
* &quot;table PC&quot;? Perhaps &quot;tablet PC&quot;, like in section 6.<b=
r>
<br>
[ section 3 ]<br>
<br>
* There are two sentences in the final paragraph which both direct the read=
er<br>
=C2=A0 to section 5 for vehicular IPv6 problem statement and requirements.<=
br>
=C2=A0 Probably only one of those sentences is really required.<br>
<br>
[ section 3.2 ]<br>
<br>
* &quot;can facilitates&quot; -&gt; &quot;can facilitate&quot;<br>
<br>
* &quot;can make the battery charging schedule&quot; is technically correct=
, but the<br>
=C2=A0 multiple possible interpretations of &quot;make&quot; in this contex=
t tripped me up<br>
=C2=A0 looking for some final (indirect) object or something.<br>
<br>
=C2=A0 Suggest something like &quot;can plan the battery charging schedule&=
quot;, perhaps?<br>
<br>
* &quot;The existing IPv6 protocol must be augmented ...&quot;<br>
<br>
=C2=A0 Should there be some explanation about why this needs to be done at =
the IPv6<br>
=C2=A0 layer and, more explicitly, why a Layer 2 solution is not an option =
that<br>
=C2=A0 can also be considered?=C2=A0 I can understand that L2 options are o=
ut of scope<br>
=C2=A0 for the IETF to work on, but are they also out of scope overall?=C2=
=A0 I could<br>
=C2=A0 believe that the reason is RFC 4903 -style issues, but I figured I&#=
39;d ask.<br>
<br>
[ section 4.1 ]<br>
<br>
* &quot;...vehicles under the coverage of an RSU share a prefix such<br>
=C2=A0 =C2=A0that mobile nodes share a prefix...&quot;<br>
<br>
=C2=A0 =C2=A0Perhaps s/such that/(just as)|(in the same way that)/?<br>
<br>
[ section 4.2/5(.0) ]<br>
<br>
* The final paragraph of 4.2 hints at this, but I found myself wanting to r=
ead<br>
=C2=A0 about the expected &quot;dwell times&quot; for a vehicle connected t=
o an IP-RSU.<br>
=C2=A0 For how long is a vehicle expected to be connected to any given acce=
ss node?<br>
=C2=A0 I think the maximum is probably uninteresting (the vehicle could be =
parked,<br>
=C2=A0 for example), but what is the useful minimum time?<br>
<br>
=C2=A0 (I see that section 5.1.2 goes include a helpful timescale reference=
.)<br>
<br>
[ section 5.1.1/5.2 ]<br>
<br>
* During handover, can a vehicle be connected to multiple IP-RSUs on the<br=
>
=C2=A0 logical interface?=C2=A0 If so, does this mean they need to use RFC =
8028 -style<br>
=C2=A0 address and next hop selection?<br>
<br>
[ section 6 ]<br>
<br>
* How can a vehicle authenticate other vehicles (and their ND information)<=
br>
=C2=A0 and the RAs coming from IP-RSUs?<br>
<br>
=C2=A0 Ah, I guess this is what the final two paragraphs are saying, actual=
ly, that<br>
=C2=A0 there needs to be such a mechanism.<br>
<br>
Datatracker URL: <a href=3D"https://datatracker.ietf.org/doc/draft-ietf-ipw=
ave-vehicular-networking/" rel=3D"noreferrer" target=3D"_blank">https://dat=
atracker.ietf.org/doc/draft-ietf-ipwave-vehicular-networking/</a><br>
<br>
<br>
<br>
<br>
<br>
</blockquote></div></div>

--000000000000e79eb405bd067beb--


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Subject: [ipwave] IETF-110 IPWAVE Hackathon Project
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Hi IPWAVE WG,
My SKKU team have demonstrated the Context-Aware Navigation Protocol (CNP)
over IPWAVE
in this IETF-110 hackathon with our new I-D:
https://datatracker.ietf.org/doc/html/draft-jeong-ipwave-context-aware-navigator-03

Here is the slides file that was presented in this IETF-110 hackathon.
https://github.com/IETF-Hackathon/ietf110-project-presentations/blob/main/Slides-IETF110-IPWAVE-Hackathon-Project-20210305.pdf

Here is the open-source IPWAVE project:
https://github.com/ipwave-hackathon-ietf

Thanks.

Best Regards,
Paul
-- 
===========================
Mr. Jaehoon (Paul) Jeong, Ph.D.
Associate Professor
Department Head
Department of Computer Science and Engineering
Sungkyunkwan University
Office: +82-31-299-4957
Email: pauljeong@skku.edu, jaehoon.paul@gmail.com
Personal Homepage: http://iotlab.skku.edu/people-jaehoon-jeong.php
<http://cpslab.skku.edu/people-jaehoon-jeong.php>

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<div dir=3D"ltr">Hi IPWAVE WG,<br>My SKKU team have demonstrated the Contex=
t-Aware Navigation Protocol (CNP) over IPWAVE<br>in this IETF-110 hackathon=
 with our new I-D:<br><a href=3D"https://datatracker.ietf.org/doc/html/draf=
t-jeong-ipwave-context-aware-navigator-03">https://datatracker.ietf.org/doc=
/html/draft-jeong-ipwave-context-aware-navigator-03</a><br><br>Here is the =
slides file that was presented in this IETF-110 hackathon.<br><a href=3D"ht=
tps://github.com/IETF-Hackathon/ietf110-project-presentations/blob/main/Sli=
des-IETF110-IPWAVE-Hackathon-Project-20210305.pdf">https://github.com/IETF-=
Hackathon/ietf110-project-presentations/blob/main/Slides-IETF110-IPWAVE-Hac=
kathon-Project-20210305.pdf</a><br><br>Here is the open-source IPWAVE proje=
ct:<br><a href=3D"https://github.com/ipwave-hackathon-ietf">https://github.=
com/ipwave-hackathon-ietf</a><br><br>Thanks.<br><br>Best Regards,<br>Paul<b=
r>-- <br><div dir=3D"ltr" class=3D"gmail_signature" data-smartmail=3D"gmail=
_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><d=
iv><div dir=3D"ltr">=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>Mr. Jaehoon (Paul) Jeong, Ph.D.<br>Associate=
 Professor</div><div dir=3D"ltr">Department Head<br>Department of Computer =
Science and Engineering<br>Sungkyunkwan University<br>Office: +82-31-299-49=
57<br>Email: <a href=3D"mailto:pauljeong@skku.edu" style=3D"font-size:12.8p=
x" target=3D"_blank">pauljeong@skku.edu</a>,=C2=A0<a href=3D"mailto:jaehoon=
.paul@gmail.com" target=3D"_blank">jaehoon.paul@gmail.com</a><br>Personal H=
omepage: <a href=3D"http://cpslab.skku.edu/people-jaehoon-jeong.php" target=
=3D"_blank">http://iotlab.skku.edu/people-jaehoon-jeong.php</a><br></div></=
div></div></div></div></div></div></div></div>

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Subject: [ipwave] I-D Action: draft-ietf-ipwave-vehicular-networking-20.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the IP Wireless Access in Vehicular Environments WG of the IETF.

        Title           : IPv6 Wireless Access in Vehicular Environments (IPWAVE): Problem Statement and Use Cases
        Author          : Jaehoon (Paul) Jeong (editor)
	Filename        : draft-ietf-ipwave-vehicular-networking-20.txt
	Pages           : 40
	Date            : 2021-03-18

Abstract:
   This document discusses the problem statement and use cases of
   IPv6-based vehicular networking for Intelligent Transportation
   Systems (ITS).  The main scenarios of vehicular communications are
   vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), and
   vehicle-to-everything (V2X) communications.  First, this document
   explains use cases using V2V, V2I, and V2X networking.  Next, for
   IPv6-based vehicular networks, it makes a gap analysis of current
   IPv6 protocols (e.g., IPv6 Neighbor Discovery, Mobility Management,
   and Security & Privacy), and then enumerates requirements for the
   extensions of those IPv6 protocols for IPv6-based vehicular
   networking.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ipwave-vehicular-networking/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ipwave-vehicular-networking-20
https://datatracker.ietf.org/doc/html/draft-ietf-ipwave-vehicular-networking-20

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ipwave-vehicular-networking-20


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/



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From: "Mr. Jaehoon Paul Jeong" <jaehoon.paul@gmail.com>
Date: Thu, 18 Mar 2021 22:32:41 +0900
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To: Erik Kline <ek.ietf@gmail.com>
Cc: Carlos Bernardos <cjbc@it.uc3m.es>, Russ Housley <housley@vigilsec.com>, its@ietf.org, skku-iotlab-members <skku-iotlab-members@googlegroups.com>,  "Mr. Jaehoon Paul Jeong" <jaehoon.paul@gmail.com>
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Subject: Re: [ipwave] Datatracker State Update Notice: <draft-ietf-ipwave-vehicular-networking-19.txt>
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Hi Erik,
There is the revision of IPWAVE PS Draft:
https://datatracker.ietf.org/doc/html/draft-ietf-ipwave-vehicular-networking-20

I attach the revision letter to explain how to address your comments.

Thanks.

Best Regards,
Paul


On Mon, Mar 8, 2021 at 10:33 PM Mr. Jaehoon Paul Jeong <
jaehoon.paul@gmail.com> wrote:

> Hi Erik,
> I will address your comments this week.
>
> Thanks for your valuable review.
>
> Best Regards,
> Paul
>
>
> On Mon, Mar 8, 2021 at 10:34 AM IETF Secretariat <
> ietf-secretariat-reply@ietf.org> wrote:
>
>> IESG state changed:
>>
>> New State: AD Evaluation::Revised I-D Needed
>>
>> (The previous state was AD Evaluation)
>>
>> [ abstract, section 1 ]
>>
>> * "lists up" -> "enumerates|sets forth|details|...", might be a better
>>   word/verb phrase
>>
>>
>> [ section 2 ]
>>
>> * "table PC"? Perhaps "tablet PC", like in section 6.
>>
>> [ section 3 ]
>>
>> * There are two sentences in the final paragraph which both direct the
>> reader
>>   to section 5 for vehicular IPv6 problem statement and requirements.
>>   Probably only one of those sentences is really required.
>>
>> [ section 3.2 ]
>>
>> * "can facilitates" -> "can facilitate"
>>
>> * "can make the battery charging schedule" is technically correct, but the
>>   multiple possible interpretations of "make" in this context tripped me
>> up
>>   looking for some final (indirect) object or something.
>>
>>   Suggest something like "can plan the battery charging schedule",
>> perhaps?
>>
>> * "The existing IPv6 protocol must be augmented ..."
>>
>>   Should there be some explanation about why this needs to be done at the
>> IPv6
>>   layer and, more explicitly, why a Layer 2 solution is not an option that
>>   can also be considered?  I can understand that L2 options are out of
>> scope
>>   for the IETF to work on, but are they also out of scope overall?  I
>> could
>>   believe that the reason is RFC 4903 -style issues, but I figured I'd
>> ask.
>>
>> [ section 4.1 ]
>>
>> * "...vehicles under the coverage of an RSU share a prefix such
>>    that mobile nodes share a prefix..."
>>
>>    Perhaps s/such that/(just as)|(in the same way that)/?
>>
>> [ section 4.2/5(.0) ]
>>
>> * The final paragraph of 4.2 hints at this, but I found myself wanting to
>> read
>>   about the expected "dwell times" for a vehicle connected to an IP-RSU.
>>   For how long is a vehicle expected to be connected to any given access
>> node?
>>   I think the maximum is probably uninteresting (the vehicle could be
>> parked,
>>   for example), but what is the useful minimum time?
>>
>>   (I see that section 5.1.2 goes include a helpful timescale reference.)
>>
>> [ section 5.1.1/5.2 ]
>>
>> * During handover, can a vehicle be connected to multiple IP-RSUs on the
>>   logical interface?  If so, does this mean they need to use RFC 8028
>> -style
>>   address and next hop selection?
>>
>> [ section 6 ]
>>
>> * How can a vehicle authenticate other vehicles (and their ND information)
>>   and the RAs coming from IP-RSUs?
>>
>>   Ah, I guess this is what the final two paragraphs are saying, actually,
>> that
>>   there needs to be such a mechanism.
>>
>> Datatracker URL:
>> https://datatracker.ietf.org/doc/draft-ietf-ipwave-vehicular-networking/
>>
>>
>>
>>
>>
>>

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<div dir=3D"ltr"><div>Hi Erik,</div><div>There is the revision of IPWAVE PS=
 Draft:</div><div><a href=3D"https://datatracker.ietf.org/doc/html/draft-ie=
tf-ipwave-vehicular-networking-20">https://datatracker.ietf.org/doc/html/dr=
aft-ietf-ipwave-vehicular-networking-20</a><br></div><div><br></div><div>I =
attach the revision letter to explain how to address your comments.</div><d=
iv><br></div><div>Thanks.</div><div><br></div><div>Best=C2=A0Regards,</div>=
<div>Paul</div><div><br></div><br><div class=3D"gmail_quote"><div dir=3D"lt=
r" class=3D"gmail_attr">On Mon, Mar 8, 2021 at 10:33 PM Mr. Jaehoon Paul Je=
ong &lt;<a href=3D"mailto:jaehoon.paul@gmail.com">jaehoon.paul@gmail.com</a=
>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px=
 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><di=
v dir=3D"ltr"><div dir=3D"ltr">Hi Erik,<div>I will address your comments th=
is week.</div><div><br></div><div>Thanks for your valuable review.</div></d=
iv><div><br></div><div>Best Regards,</div><div>Paul</div><div><br></div><br=
><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, M=
ar 8, 2021 at 10:34 AM IETF Secretariat &lt;<a href=3D"mailto:ietf-secretar=
iat-reply@ietf.org" target=3D"_blank">ietf-secretariat-reply@ietf.org</a>&g=
t; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0p=
x 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">IESG s=
tate changed:<br>
<br>
New State: AD Evaluation::Revised I-D Needed<br>
<br>
(The previous state was AD Evaluation)<br>
<br>
[ abstract, section 1 ]<br>
<br>
* &quot;lists up&quot; -&gt; &quot;enumerates|sets forth|details|...&quot;,=
 might be a better<br>
=C2=A0 word/verb phrase<br>
<br>
<br>
[ section 2 ]<br>
<br>
* &quot;table PC&quot;? Perhaps &quot;tablet PC&quot;, like in section 6.<b=
r>
<br>
[ section 3 ]<br>
<br>
* There are two sentences in the final paragraph which both direct the read=
er<br>
=C2=A0 to section 5 for vehicular IPv6 problem statement and requirements.<=
br>
=C2=A0 Probably only one of those sentences is really required.<br>
<br>
[ section 3.2 ]<br>
<br>
* &quot;can facilitates&quot; -&gt; &quot;can facilitate&quot;<br>
<br>
* &quot;can make the battery charging schedule&quot; is technically correct=
, but the<br>
=C2=A0 multiple possible interpretations of &quot;make&quot; in this contex=
t tripped me up<br>
=C2=A0 looking for some final (indirect) object or something.<br>
<br>
=C2=A0 Suggest something like &quot;can plan the battery charging schedule&=
quot;, perhaps?<br>
<br>
* &quot;The existing IPv6 protocol must be augmented ...&quot;<br>
<br>
=C2=A0 Should there be some explanation about why this needs to be done at =
the IPv6<br>
=C2=A0 layer and, more explicitly, why a Layer 2 solution is not an option =
that<br>
=C2=A0 can also be considered?=C2=A0 I can understand that L2 options are o=
ut of scope<br>
=C2=A0 for the IETF to work on, but are they also out of scope overall?=C2=
=A0 I could<br>
=C2=A0 believe that the reason is RFC 4903 -style issues, but I figured I&#=
39;d ask.<br>
<br>
[ section 4.1 ]<br>
<br>
* &quot;...vehicles under the coverage of an RSU share a prefix such<br>
=C2=A0 =C2=A0that mobile nodes share a prefix...&quot;<br>
<br>
=C2=A0 =C2=A0Perhaps s/such that/(just as)|(in the same way that)/?<br>
<br>
[ section 4.2/5(.0) ]<br>
<br>
* The final paragraph of 4.2 hints at this, but I found myself wanting to r=
ead<br>
=C2=A0 about the expected &quot;dwell times&quot; for a vehicle connected t=
o an IP-RSU.<br>
=C2=A0 For how long is a vehicle expected to be connected to any given acce=
ss node?<br>
=C2=A0 I think the maximum is probably uninteresting (the vehicle could be =
parked,<br>
=C2=A0 for example), but what is the useful minimum time?<br>
<br>
=C2=A0 (I see that section 5.1.2 goes include a helpful timescale reference=
.)<br>
<br>
[ section 5.1.1/5.2 ]<br>
<br>
* During handover, can a vehicle be connected to multiple IP-RSUs on the<br=
>
=C2=A0 logical interface?=C2=A0 If so, does this mean they need to use RFC =
8028 -style<br>
=C2=A0 address and next hop selection?<br>
<br>
[ section 6 ]<br>
<br>
* How can a vehicle authenticate other vehicles (and their ND information)<=
br>
=C2=A0 and the RAs coming from IP-RSUs?<br>
<br>
=C2=A0 Ah, I guess this is what the final two paragraphs are saying, actual=
ly, that<br>
=C2=A0 there needs to be such a mechanism.<br>
<br>
Datatracker URL: <a href=3D"https://datatracker.ietf.org/doc/draft-ietf-ipw=
ave-vehicular-networking/" rel=3D"noreferrer" target=3D"_blank">https://dat=
atracker.ietf.org/doc/draft-ietf-ipwave-vehicular-networking/</a><br>
<br>
<br>
<br>
<br>
<br>
</blockquote></div></div>
</blockquote></div></div>

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From nobody Fri Mar 26 01:32:50 2021
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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
Cc: uwe.loewenstein@itu.int
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Subject: Re: [ipwave]  =?utf-8?q?New_Liaison_Statement=2C_=22Development_of_a_?= =?utf-8?q?draft_new_Report_ITU-R_M=2E=5BIMT=2EC-V2X=5D_=E2=80=93_The_use_?= =?utf-8?q?of_the_terrestrial_component_of_IMT_systems_for_Cellular-Vehicl?= =?utf-8?q?e-to-Everything=22?=
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Le 08/12/2020 à 18:13, Liaison Statement Management Tool a écrit :
> Title: Development of a draft new Report ITU-R M.[IMT.C-V2X] – The use of the terrestrial component of IMT systems for Cellular-Vehicle-to-Everything
> Submission Date: 2020-12-08
> URL of the IETF Web page: https://datatracker.ietf.org/liaison/1711/
> 
> From: Uwe Loewenstein <uwe.loewenstein@itu.int>
> To: Carlos Bernardos <cjbc@it.uc3m.es>,Russ Housley <housley@vigilsec.com>
> Cc: Erik Kline <ek.ietf@gmail.com>,itu-t-liaison@iab.org,IP Wireless Access in Vehicular Environments Discussion List <its@ietf.org>,Carlos Bernardos <cjbc@it.uc3m.es>,Éric Vyncke <evyncke@cisco.com>,Russ Housley <housley@vigilsec.com>
> Response Contacts: uwe.loewenstein@itu.int
> Technical Contacts:
> Purpose: For information
> 
> Body:
> Attachments:
> 
>      R19-WP5D-C-0360_Att. 3.8
>      https://www.ietf.org/lib/dt/documents/LIAISON/liaison-2020-12-08-itu-r-wp5d-ipwave-development-of-a-draft-new-report-itu-r-mimtc-v2x-the-use-of-the-terrestrial-component-of-imt-systems-for-cel-attachment-1.docx

The platooning use case mentioned in the document is also present in 
section 3.1 of this IPWAVE WG's document 
https://tools.ietf.org/html/draft-ietf-ipwave-vehicular-networking-20

This Internet Draf is Work in Progress.

Maybe we can find common interests.  Maybe the LS could refer to a later 
version of this I-D, maybe if it becomes an RFC later.

Yours,

Alex

> 
> 
> _______________________________________________
> its mailing list
> its@ietf.org
> https://www.ietf.org/mailman/listinfo/its
> 


From nobody Sat Mar 27 02:04:03 2021
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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Subject: Re: [ipwave] mechanical layer and IPv6 in cars
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Le 16/02/2021 à 03:42, Dick Roy a écrit :
[...]
> I recommend a bicycle.  [...] and it doesn't break down every 10 
> miles.  Also, you can repair it yourself if you know which end of a 
> screwdriver to hold. :^)))

Connected self-riding bicycles :-)

Still though, this might relate to IPv6 in cars.

There is a development process for cars.  That process is particular in
many ways.  For example, it is different than mobile objects in space,
which are guided more by the NASA's TRL levels.

Often times people are asked to put IPv6 in cars with prototype computer
and network interfaces.  To do that, the very initial steps are to start
working on a desk or on the laps with a computer and USB OCB or 4G
interfaces.  A Raspberry Pi, a laptop and an USB dongle are very common
first steps.

When that works with IPv6 and Internet it's so great that the temptation
is to immediately put that in one's car.  And it works there too.

But the development process is not finished.

Going to more 'show cars', or 'concept cars', or 'prototype cars', one
hits more and more mechanical constraints.  That initial
laptop+raspberry+usb must become tamper-proof so people dont steal it,
shockproof so it absorbs shocks on the road, waterproof so no need of a
tent around a static car under the rain, even fireproof in case there is
fire in the car.  One might need gloves too.

For each of these *-proof requirements, there are some times software or
other brain-controlled organizational ideas.  For example one might use
software MAC layers in a stack to retransmit and accommodate for
intermittent mechanical disconnnections and make the IP layer think it's
all fine.  Organizationally,  one might put the box in the car far from
the engine, maybe in the trunk.

But other times a screwdriver is needed.  A USB dongle implementing OCB
mode or 4G with IPv6 should not be used in a car, because USB mechanical
interface does not feature screws.  There are some exceptions with
plastic screwing, but only on one end of an USB cable.  Rather, in a
more advanced IPv6-over-OCB-or-4G prototype one should use miniPCI kind
of board (PCB - printed circuit board) network interfaces because that
has screws and can be safely attached, thus sollicitting less the MAC
retransmissions.

A screwdriver is needed then :-)

As a side note: I also agree with you about the parts  where I ellided
text in the text you wrote: I think it is necessary that the addition of
IPv6 support in the car needs to be as less intrusive mehcanically as
possible.  This is to not defigurate the car appearance.  It should be
as less energy-consuming as possible, and at the least cost possible.

Alex

> 
> 
> 
> -----Original Message----- From: its [mailto:its-bounces@ietf.org]
> On Behalf Of Rex Buddenberg Sent: Monday, February 15, 2021 8:08 AM
> To: Alexandre Petrescu; its@ietf.org Subject: Re: [ipwave] Risks for
> the future of OCB mode at 5.9GHz
> 
> The cellphone in my pocket (and probably yours) have both LTE and 
> WiFi interfaces.
> 
> 
> On Mon, 2021-02-15 at 12:37 +0100, Alexandre Petrescu wrote:
>> A colleague pointed me to a video presentation of the problem of 
>> ITS- G5 vs C-V2X of January 21, 2021.  The presentation is brief. 
>> It describes this DSRC-vs-5G to be a problem because there are two 
>> standards, too complex for deployers, and there is uncertainty for 
>> vehicle users.  IMHO this uncertainty means : should I buy a Ford 
>> (C-V2X) or a VW (ITS- G5). The presenter gives his oppinion: 
>> probably C-V2X will win.
>> 
>> Starting at around 21:02 (21min, 2 seconds) and lasts for about 2 
>> minutes:
>> 
>> https://www.real-wireless.com/predicting-2021-trends-connectivity-ins
>>
>>
>>
>>
>>
>>
>> 
ight-from-real-wireless/
>> 
>> It is interesting to note how he compares the problem to the VHS vs
>> Betacam (presumably 5G is more of VHS, and ITS-G5/DSRC more of 
>> Betacam). Certainly, in around 1995 one would no longer work on 
>> anything Betacam. But they were both overcome by DVD and Bluray 
>> later, and now by 8K.
>> 
>> Also, the notion of direct communications in cellular systems (w/o
>>  base station) existed long before 5G's PC5: 3G tried it too but
>> it did not work.  On another hand, in 3G there were no chips doing
>>  direct comm, no spectrum, but in 5G there are.
>> 
>> All in all, I am not sure how will this unfold.
>> 
>> Possibly one way forward is to consider IP: IP-over-PC5, and 
>> CAM-over-IP.
>> 
>> With IP tools at hand, the deployer would abstract from the 
>> DSRC-vs- PC5 problem.
>> 
>> What do you think is a possible way forward in the DSRC-vs-PC5 
>> problem?
>> 
>> Alex
>> 
>> 
>> Le 12/02/2021 à 11:51, Alexandre Petrescu a écrit :
>>> 
>>> I take advantage of a private message I received, in order to 
>>> explain this in English, and to the public email list.
>>> 
>>> I have some doubts about the future of OCB mode of WiFi.
>>> 
>>> The recent re-allocation of spectrum by FCC in USA divides the 
>>> space typically used for OCB mode of 802.11 into a space for 
>>> C-V2X (a different mode than 802.11) and a space for WiFi.
>>> 
>>> The C-V2X already ate the OCB mode at cca 5.8-5.9GHz, by 
>>> allocation. The WiFi is highly likely to eat the OCB mode at cca 
>>> 5.4-5.8GHz. The reason of this is that WiFi is always and will 
>>> always be looking at increasing the bandwidth; that increase can 
>>> be achieved by widening the bands.  This is what WiFi 6E does 
>>> when claiming to offer 4Gbit/s at 6GHz ('6' is a coincidence).
>>> 
>>> In the past, what FCC did in USA at 5.9GHz was simply replicated
>>>  in Europe and other parts of the world.  Even if today much RSU
>>>  deployment exists in Europe (refs available) that runs OCB at 
>>> 5.9GHz, and VW Golf 8s send CAMs to each other, many indicators 
>>> point that it might be that these will disappear.  Such 
>>> indicators are, for example, lack of OCB mode in smartphones, 
>>> pushes from industry alliance 5GAA towards 5G-V2X, lack of FCC 
>>> reply to IPv6-over-OCB comment, and other declarations.
>>> 
>>> It is for these reasons that I tend to think the future of OCB 
>>> mode of 802.11 at around 5.9GHz is probably at risk.
>>> 
>>> Alex
>>> 
>>> _______________________________________________ its mailing list
>>>  its@ietf.org https://www.ietf.org/mailman/listinfo/its
>> _______________________________________________ its mailing list 
>> its@ietf.org https://www.ietf.org/mailman/listinfo/its
> 
> _______________________________________________ its mailing list 
> its@ietf.org https://www.ietf.org/mailman/listinfo/its
> 


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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
To: its@ietf.org
References: <863a639c-175b-74c3-cab8-5f5e79d69f3f@gmail.com> <6f71db86-bef3-d309-b845-b02b6a1c3235@gmail.com>
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Subject: Re: [ipwave] PC5 at 5.9GHz - modules
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For information,

Me and a colleague have looked independently at the pdf of devices for
C-V2X.

My goal is to identify the best possible C-V2X miniPCIe card that is
supported in linux.

By reputation, maybe the Unex is the most likely to offer one such card.
  A few of us already worked with Unex cards in the past, but for ITS-G5.
  But Unex card for C-V2X at 5.9GHz is not yet available to acquire
easily (like e.g. buying on Amazon or alibaba).

I wait for easy availability because of the risk of what might happen at 
customs.  The regulation of C-V2X spectrum in Europe and in the country 
where I live is far from straightforward: it is not clear in Europe 
whether or not C-V2X technology is allowed at 5.9GHz.  BEcause of that 
uncertainty the customs prices can skyrocket easily (add up to double to 
the original price).

We wait.

Alex



Le 26/01/2021 à 17:41, Alexandre Petrescu a écrit :
> I was provided in private the 5GAA's list of PC5 capable devices.  It
> is a public document whose links clicked ok in OCtober 2020; the
> document is at URL 
> https://5gaa.org/wp-content/uploads/2020/11/5GAA_List-of-C-V2X-Devices.pdf
>
>  Some of the links no more work.
> 
> The document is sorted by: chips, modules, OBUs, RSUs, etc.
> 
> The chips are from: Autotalks, Huawei, Qualcomm.
> 
> The modules are from: SimCOM, muRata, Quectel, WNC, LG Innotek, ZTE, 
> Neoway, Unex, Datang, Alps Alpine.
> 
> A promising chips to try might be the those who say 'linux' and 'Mode
> 4' (a kind of LTE equivalent of 802.11 'ad-hoc' mode).  Because the 
> software driver in linux would be freely available and the Mode 4
> would be the mode not needing SIM card.
> 
> I am not sure though whether or not there are currently linux
> drivers available freely for 'Mode 4' implementations?
> 
> Alex
> 
> Le 24/01/2021 à 13:48, Alexandre Petrescu a écrit :
>> Hi, IPWAVErs,
>> 
>> Is there cheaply available hardware to make work PC5 at 5.9GHz?
>> PC5 is a part of 5G specs that deal with direct communications
>> between vehicles, presumably without SIM cards and without the
>> involvement of a Mobile Network Operator (MNO).
>> 
>> For my part, I think no, there is no PC5 hardware at 5.9GHz.
>> 
>> It is very likely, I think, that PC5 hardware (modems, interfaces) 
>> might use a very different PHY layer than what 802.11-OCB uses.
>> That might be the 'New Radio' (NR) of 5G.  NR is incompatible with
>> 802.11 PHY layer.
>> 
>> There are no 5.9GHz bands, no spectrum, allocated neither in USA
>> by FCC nor in Europe by the Commission, for 'C-V2X' or for 'PC5'
>> even though there might have been a request for comments ('an
>> 'NPRM') at FCC in USA in that sense.  That NPRM did not lead to
>> allocating 5.9GHz spectrum for C-V2X.  It is one year now since
>> that NPRM closed.
>> 
>> Currently, all 5.9GHz bands are fully allocated to 'DSRC' (or,
>> 802.11 if you wish, or 'ITS-G5').
>> 
>> However, I was pointed by a vehicle manufacturer to a router 
>> manufacturer (Comsignia, see https://www.commsignia.com/hardware/)
>>  description that states that one feature is "DSRC and C-V2X (PC5)
>>  communication interfaces".  The price of that OBU is not
>> displayed, but I suspect it to be in the range of a couple thousand
>> euros, which can still be affordable, even though not for a series
>> car whose price might be highly affected.
>> 
>> Also, I was pointed to a recent cheap hardware "AirPrime® EM9190
>> 5G NR Sub-6 GHz and mmWave Module" which lists the following
>> bands: "Sub-6: n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38,
>> n40, n41, n48, n66, n71, n77, n78, n79, mmWave: n257, n258, n260,
>> n261".  In this list, there are not the bands 'n46' and 'n47',
>> which are the bands for 5.9GHz.
>> 
>> This brings me the question: is there cheap hardware for PC5 at 
>> 5.9GHz?
>> 
>> Alex
>> 
>> _______________________________________________ its mailing list 
>> its@ietf.org https://www.ietf.org/mailman/listinfo/its
> 
> _______________________________________________ its mailing list 
> its@ietf.org https://www.ietf.org/mailman/listinfo/its


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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
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Subject: Re: [ipwave] PC5 at 5.9GHz - modules
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I am told in private about success reports on linux with:
- USRP B210 SDR Kit - Dual Channel Transceiver (70 MHz - 6GHz) - Ettus
   Research - ~1000Eur.
- CohdaWireless MK6 evaluation kits.

For my part, I am looking for cheap miniPCIe cards for C-V2X at 5.9GHz 
for linux.

Maybe these will come up a little bit later.

Alex


Le 31/03/2021 à 15:17, Alexandre Petrescu a écrit :
> For information,
> 
> Me and a colleague have looked independently at the pdf of devices for
> C-V2X.
> 
> My goal is to identify the best possible C-V2X miniPCIe card that is
> supported in linux.
> 
> By reputation, maybe the Unex is the most likely to offer one such card.
>   A few of us already worked with Unex cards in the past, but for ITS-G5.
>   But Unex card for C-V2X at 5.9GHz is not yet available to acquire
> easily (like e.g. buying on Amazon or alibaba).
> 
> I wait for easy availability because of the risk of what might happen at 
> customs.  The regulation of C-V2X spectrum in Europe and in the country 
> where I live is far from straightforward: it is not clear in Europe 
> whether or not C-V2X technology is allowed at 5.9GHz.  BEcause of that 
> uncertainty the customs prices can skyrocket easily (add up to double to 
> the original price).
> 
> We wait.
> 
> Alex
> 
> 
> 
> Le 26/01/2021 à 17:41, Alexandre Petrescu a écrit :
>> I was provided in private the 5GAA's list of PC5 capable devices.  It
>> is a public document whose links clicked ok in OCtober 2020; the
>> document is at URL 
>> https://5gaa.org/wp-content/uploads/2020/11/5GAA_List-of-C-V2X-Devices.pdf 
>>
>>
>>  Some of the links no more work.
>>
>> The document is sorted by: chips, modules, OBUs, RSUs, etc.
>>
>> The chips are from: Autotalks, Huawei, Qualcomm.
>>
>> The modules are from: SimCOM, muRata, Quectel, WNC, LG Innotek, ZTE, 
>> Neoway, Unex, Datang, Alps Alpine.
>>
>> A promising chips to try might be the those who say 'linux' and 'Mode
>> 4' (a kind of LTE equivalent of 802.11 'ad-hoc' mode).  Because the 
>> software driver in linux would be freely available and the Mode 4
>> would be the mode not needing SIM card.
>>
>> I am not sure though whether or not there are currently linux
>> drivers available freely for 'Mode 4' implementations?
>>
>> Alex
>>
>> Le 24/01/2021 à 13:48, Alexandre Petrescu a écrit :
>>> Hi, IPWAVErs,
>>>
>>> Is there cheaply available hardware to make work PC5 at 5.9GHz?
>>> PC5 is a part of 5G specs that deal with direct communications
>>> between vehicles, presumably without SIM cards and without the
>>> involvement of a Mobile Network Operator (MNO).
>>>
>>> For my part, I think no, there is no PC5 hardware at 5.9GHz.
>>>
>>> It is very likely, I think, that PC5 hardware (modems, interfaces) 
>>> might use a very different PHY layer than what 802.11-OCB uses.
>>> That might be the 'New Radio' (NR) of 5G.  NR is incompatible with
>>> 802.11 PHY layer.
>>>
>>> There are no 5.9GHz bands, no spectrum, allocated neither in USA
>>> by FCC nor in Europe by the Commission, for 'C-V2X' or for 'PC5'
>>> even though there might have been a request for comments ('an
>>> 'NPRM') at FCC in USA in that sense.  That NPRM did not lead to
>>> allocating 5.9GHz spectrum for C-V2X.  It is one year now since
>>> that NPRM closed.
>>>
>>> Currently, all 5.9GHz bands are fully allocated to 'DSRC' (or,
>>> 802.11 if you wish, or 'ITS-G5').
>>>
>>> However, I was pointed by a vehicle manufacturer to a router 
>>> manufacturer (Comsignia, see https://www.commsignia.com/hardware/)
>>>  description that states that one feature is "DSRC and C-V2X (PC5)
>>>  communication interfaces".  The price of that OBU is not
>>> displayed, but I suspect it to be in the range of a couple thousand
>>> euros, which can still be affordable, even though not for a series
>>> car whose price might be highly affected.
>>>
>>> Also, I was pointed to a recent cheap hardware "AirPrime® EM9190
>>> 5G NR Sub-6 GHz and mmWave Module" which lists the following
>>> bands: "Sub-6: n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38,
>>> n40, n41, n48, n66, n71, n77, n78, n79, mmWave: n257, n258, n260,
>>> n261".  In this list, there are not the bands 'n46' and 'n47',
>>> which are the bands for 5.9GHz.
>>>
>>> This brings me the question: is there cheap hardware for PC5 at 5.9GHz?
>>>
>>> Alex
>>>
>>> _______________________________________________ its mailing list 
>>> its@ietf.org https://www.ietf.org/mailman/listinfo/its
>>
>> _______________________________________________ its mailing list 
>> its@ietf.org https://www.ietf.org/mailman/listinfo/its
> 
> _______________________________________________
> its mailing list
> its@ietf.org
> https://www.ietf.org/mailman/listinfo/its


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From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
To: its@ietf.org
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Subject: Re: [ipwave] PC5 at 5.9GHz - modules
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In private I am pointed to Wistron as well.  Wistron's web page looks 
attractive and their reputation is high.

It is there 
https://www.wnc.com.tw/index.php?action=pro_cate_third_close&top_id=106&scid=123&tid=145

But it is not a mass produced device.  It is way too expensive.  I 
wouldnt put a 1000EUR device in a cheap car that costs itself 5000EUR. 
It is not proportional.

I wait so it becomes cheaper.

Alex


Le 31/03/2021 à 16:52, Alexandre Petrescu a écrit :
> I am told in private about success reports on linux with:
> - USRP B210 SDR Kit - Dual Channel Transceiver (70 MHz - 6GHz) - Ettus
>    Research - ~1000Eur.
> - CohdaWireless MK6 evaluation kits.
> 
> For my part, I am looking for cheap miniPCIe cards for C-V2X at 5.9GHz 
> for linux.
> 
> Maybe these will come up a little bit later.
> 
> Alex
> 
> 
> Le 31/03/2021 à 15:17, Alexandre Petrescu a écrit :
>> For information,
>>
>> Me and a colleague have looked independently at the pdf of devices for
>> C-V2X.
>>
>> My goal is to identify the best possible C-V2X miniPCIe card that is
>> supported in linux.
>>
>> By reputation, maybe the Unex is the most likely to offer one such card.
>>   A few of us already worked with Unex cards in the past, but for ITS-G5.
>>   But Unex card for C-V2X at 5.9GHz is not yet available to acquire
>> easily (like e.g. buying on Amazon or alibaba).
>>
>> I wait for easy availability because of the risk of what might happen 
>> at customs.  The regulation of C-V2X spectrum in Europe and in the 
>> country where I live is far from straightforward: it is not clear in 
>> Europe whether or not C-V2X technology is allowed at 5.9GHz.  BEcause 
>> of that uncertainty the customs prices can skyrocket easily (add up to 
>> double to the original price).
>>
>> We wait.
>>
>> Alex
>>
>>
>>
>> Le 26/01/2021 à 17:41, Alexandre Petrescu a écrit :
>>> I was provided in private the 5GAA's list of PC5 capable devices.  It
>>> is a public document whose links clicked ok in OCtober 2020; the
>>> document is at URL 
>>> https://5gaa.org/wp-content/uploads/2020/11/5GAA_List-of-C-V2X-Devices.pdf 
>>>
>>>
>>>  Some of the links no more work.
>>>
>>> The document is sorted by: chips, modules, OBUs, RSUs, etc.
>>>
>>> The chips are from: Autotalks, Huawei, Qualcomm.
>>>
>>> The modules are from: SimCOM, muRata, Quectel, WNC, LG Innotek, ZTE, 
>>> Neoway, Unex, Datang, Alps Alpine.
>>>
>>> A promising chips to try might be the those who say 'linux' and 'Mode
>>> 4' (a kind of LTE equivalent of 802.11 'ad-hoc' mode).  Because the 
>>> software driver in linux would be freely available and the Mode 4
>>> would be the mode not needing SIM card.
>>>
>>> I am not sure though whether or not there are currently linux
>>> drivers available freely for 'Mode 4' implementations?
>>>
>>> Alex
>>>
>>> Le 24/01/2021 à 13:48, Alexandre Petrescu a écrit :
>>>> Hi, IPWAVErs,
>>>>
>>>> Is there cheaply available hardware to make work PC5 at 5.9GHz?
>>>> PC5 is a part of 5G specs that deal with direct communications
>>>> between vehicles, presumably without SIM cards and without the
>>>> involvement of a Mobile Network Operator (MNO).
>>>>
>>>> For my part, I think no, there is no PC5 hardware at 5.9GHz.
>>>>
>>>> It is very likely, I think, that PC5 hardware (modems, interfaces) 
>>>> might use a very different PHY layer than what 802.11-OCB uses.
>>>> That might be the 'New Radio' (NR) of 5G.  NR is incompatible with
>>>> 802.11 PHY layer.
>>>>
>>>> There are no 5.9GHz bands, no spectrum, allocated neither in USA
>>>> by FCC nor in Europe by the Commission, for 'C-V2X' or for 'PC5'
>>>> even though there might have been a request for comments ('an
>>>> 'NPRM') at FCC in USA in that sense.  That NPRM did not lead to
>>>> allocating 5.9GHz spectrum for C-V2X.  It is one year now since
>>>> that NPRM closed.
>>>>
>>>> Currently, all 5.9GHz bands are fully allocated to 'DSRC' (or,
>>>> 802.11 if you wish, or 'ITS-G5').
>>>>
>>>> However, I was pointed by a vehicle manufacturer to a router 
>>>> manufacturer (Comsignia, see https://www.commsignia.com/hardware/)
>>>>  description that states that one feature is "DSRC and C-V2X (PC5)
>>>>  communication interfaces".  The price of that OBU is not
>>>> displayed, but I suspect it to be in the range of a couple thousand
>>>> euros, which can still be affordable, even though not for a series
>>>> car whose price might be highly affected.
>>>>
>>>> Also, I was pointed to a recent cheap hardware "AirPrime® EM9190
>>>> 5G NR Sub-6 GHz and mmWave Module" which lists the following
>>>> bands: "Sub-6: n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38,
>>>> n40, n41, n48, n66, n71, n77, n78, n79, mmWave: n257, n258, n260,
>>>> n261".  In this list, there are not the bands 'n46' and 'n47',
>>>> which are the bands for 5.9GHz.
>>>>
>>>> This brings me the question: is there cheap hardware for PC5 at 5.9GHz?
>>>>
>>>> Alex
>>>>
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